View source for Medical Calculators

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| style="font-size:24px; font-weight:bold;" | Emergency Medicine Clinical Calculators
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| style="font-size:14px;" | Interactive scoring tools for clinical decision-making at the bedside. Select responses below and scores will calculate automatically. Each calculator is a template that can also be placed on its relevant topic page.
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<div style="font-weight:bold; font-size:14px; margin-bottom:5px;">Contents [show]</div>
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[[#Cardiac|1. Cardiac]] — [[#HEART Score for Major Cardiac Events|HEART]] &bull; [[#CHA₂DS₂-VASc Score for Atrial Fibrillation Stroke Risk|CHA₂DS₂-VASc]] &bull; [[#HAS-BLED Score for Bleeding Risk|HAS-BLED]] &bull; [[#TIMI Risk Score for UA/NSTEMI|TIMI]] &bull; [[#Corrected QT Interval (QTc)|QTc]]

[[#Pulmonary|2. Pulmonary]] — [[#Wells' Criteria for Pulmonary Embolism|Wells PE]] &bull; [[#PERC Rule for Pulmonary Embolism|PERC]] &bull; [[#CURB-65 Score for Pneumonia Severity|CURB-65]] &bull; [[#Light's Criteria for Pleural Effusion|Light's]]

[[#Vascular|3. Vascular]] — [[#Wells' Criteria for DVT|Wells DVT]] &bull; [[#Shock Index|Shock Index]]

[[#Neurological|4. Neurological]] — [[#Glasgow Coma Scale (GCS)|GCS]] &bull; [[#NIH Stroke Scale (NIHSS)|NIHSS]] &bull; [[#Modified Fisher Scale for SAH|Fisher]] &bull; [[#Canadian CT Head Rule|Canadian CT Head]] &bull; [[#ABCD2 Score for TIA|ABCD2]]

[[#Infectious Disease / Sepsis|5. ID/Sepsis]] — [[#qSOFA (Quick SOFA) Score|qSOFA]] &bull; [[#SIRS Criteria|SIRS]] &bull; [[#LRINEC Score for Necrotizing Fasciitis|LRINEC]]

[[#Gastrointestinal / Hepatic|6. GI/Hepatic]] — [[#Alvarado Score (MANTRELS) for Appendicitis|Alvarado]] &bull; [[#Ranson's Criteria for Pancreatitis Severity|Ranson's]] &bull; [[#MELD Score (End-Stage Liver Disease)|MELD]] &bull; [[#Child-Pugh Score for Cirrhosis|Child-Pugh]]

[[#Toxicology / Withdrawal|7. Tox/Withdrawal]] — [[#CIWA-Ar (Alcohol Withdrawal)|CIWA-Ar]]

[[#Syncope|8. Syncope]] — [[#San Francisco Syncope Rule (CHESS)|SF Syncope]]

[[#ENT / Pharyngitis|9. ENT]] — [[#Modified Centor (McIsaac) Score|Centor]]

[[#Renal / Electrolytes / Acid-Base|10. Renal/Lytes]] — [[#Anion Gap Calculator|Anion Gap]] &bull; [[#FENa — Fractional Excretion of Sodium|FENa]] &bull; [[#Winters' Formula (Expected pCO₂)|Winters']] &bull; [[#Osmolal Gap|Osm Gap]] &bull; [[#Corrected Sodium for Hyperglycemia|Corrected Na]] &bull; [[#Creatinine Clearance (Cockcroft-Gault)|CrCl]] &bull; [[#Sodium Deficit / Free Water Deficit|Na Deficit]]

[[#Orthopedic / Trauma|11. Ortho/Trauma]] — [[#Ottawa Ankle Rule|Ottawa Ankle]] &bull; [[#Ottawa Knee Rule|Ottawa Knee]] &bull; [[#NEXUS Criteria for C-Spine|NEXUS]] &bull; [[#Canadian C-Spine Rule|Canadian C-Spine]] &bull; [[#Parkland Formula for Burns|Parkland]]

[[#Pediatrics|12. Pediatrics]] — [[#PECARN Pediatric Head CT Decision Rule|PECARN]] &bull; [[#APGAR Score|APGAR]]

[[#Anthropometrics / Dosing|13. Dosing]] — [[#BMI & Body Surface Area|BMI/BSA]] &bull; [[#Ideal Body Weight / Adjusted Body Weight|IBW]] &bull; [[#Maintenance IV Fluids (4-2-1 Rule)|Maintenance Fluids]] &bull; [[#Schwartz Equation (Pediatric GFR)|Schwartz]]
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== Cardiac ==

=== HEART Score for Major Cardiac Events ===
{{HEART Score Calculator}}

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=== CHA₂DS₂-VASc Score for Atrial Fibrillation Stroke Risk ===
{{CHA2DS2VASc Calculator}}

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=== HAS-BLED Score for Bleeding Risk ===
{{HASBLED Calculator}}

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=== TIMI Risk Score for UA/NSTEMI ===
{{TIMI NSTEMI Calculator}}

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=== Corrected QT Interval (QTc) ===
{{QTc Calculator}}

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== Pulmonary ==

=== Wells' Criteria for Pulmonary Embolism ===
{{Wells PE Calculator}}

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=== PERC Rule for Pulmonary Embolism ===
{{PERC Calculator}}

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=== CURB-65 Score for Pneumonia Severity ===
{{CURB65 Calculator}}

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=== Light's Criteria for Pleural Effusion ===
{{Lights Criteria Calculator}}

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== Vascular ==

=== Wells' Criteria for DVT ===
{{Wells DVT Calculator}}

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=== Shock Index ===
{{Shock Index Calculator}}

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== Neurological ==

=== Glasgow Coma Scale (GCS) ===
{{GCS Calculator}}

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=== NIH Stroke Scale (NIHSS) ===
{{NIHSS Calculator}}

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=== Modified Fisher Scale for SAH ===
{{Fisher Scale Calculator}}

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=== Canadian CT Head Rule ===
{{Canadian CT Head Calculator}}

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=== ABCD2 Score for TIA ===
{{ABCD2 Calculator}}

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== Infectious Disease / Sepsis ==

=== qSOFA (Quick SOFA) Score ===
{{QSOFA Calculator}}

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=== SIRS Criteria ===
{{SIRS Calculator}}

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=== LRINEC Score for Necrotizing Fasciitis ===
{{LRINEC Calculator}}

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== Gastrointestinal / Hepatic ==

=== Alvarado Score (MANTRELS) for Appendicitis ===
{{Alvarado Calculator}}

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=== Ranson's Criteria for Pancreatitis Severity ===
{{Ransons Calculator}}

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=== MELD Score (End-Stage Liver Disease) ===
{{MELD Calculator}}

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=== Child-Pugh Score for Cirrhosis ===
{{Child Pugh Calculator}}

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== Toxicology / Withdrawal ==

=== CIWA-Ar (Alcohol Withdrawal) ===
{{CIWA Calculator}}

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== Syncope ==

=== San Francisco Syncope Rule (CHESS) ===
{{SF Syncope Calculator}}

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== ENT / Pharyngitis ==

=== Modified Centor (McIsaac) Score ===
{{Centor Calculator}}

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== Renal / Electrolytes / Acid-Base ==

=== Anion Gap Calculator ===
{{Anion Gap Calculator}}

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=== FENa — Fractional Excretion of Sodium ===
{{FENa Calculator}}

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=== Winters' Formula (Expected pCO₂) ===
{{Winters Formula Calculator}}

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=== Osmolal Gap ===
{{Osmolal Gap Calculator}}

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=== Corrected Sodium for Hyperglycemia ===
{{Corrected Sodium Calculator}}

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=== Creatinine Clearance (Cockcroft-Gault) ===
{{CrCl Calculator}}

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=== Sodium Deficit / Free Water Deficit ===
{{Sodium Deficit Calculator}}

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== Orthopedic / Trauma ==

=== Ottawa Ankle Rule ===
{{Ottawa Ankle Calculator}}

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=== Ottawa Knee Rule ===
{{Ottawa Knee Calculator}}

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=== NEXUS Criteria for C-Spine ===
{{NEXUS Calculator}}

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=== Canadian C-Spine Rule ===
{{Canadian CSpine Calculator}}

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=== Parkland Formula for Burns ===
{{Parkland Calculator}}

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== Pediatrics ==

=== PECARN Pediatric Head CT Decision Rule ===
{{PECARN Calculator}}

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=== APGAR Score ===
{{APGAR Calculator}}

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== Anthropometrics / Dosing ==

=== BMI & Body Surface Area ===
{{BMI Calculator}}

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=== Ideal Body Weight / Adjusted Body Weight ===
{{Ideal Body Weight Calculator}}

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=== Maintenance IV Fluids (4-2-1 Rule) ===
{{Maintenance Fluids Calculator}}

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=== Schwartz Equation (Pediatric GFR) ===
{{Schwartz Calculator}}

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{| style="width:100%; background:#ebedef; padding:10px; border-radius:5px; margin-top:20px;"
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| style="font-size:12px; color:#555;" | '''Disclaimer:''' These calculators are provided as clinical decision support tools only. They do not replace clinical judgment. Always consider the full clinical picture when making treatment decisions. Scoring systems referenced from peer-reviewed literature. See individual template pages for complete references.
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==References==
<references/>

[[Category:Misc/General]]
[[Category:Calculators]]